diff options
Diffstat (limited to 'cores/arduino/wiring_digital.c')
-rwxr-xr-x | cores/arduino/wiring_digital.c | 76 |
1 files changed, 4 insertions, 72 deletions
diff --git a/cores/arduino/wiring_digital.c b/cores/arduino/wiring_digital.c index 95666b1..9671045 100755 --- a/cores/arduino/wiring_digital.c +++ b/cores/arduino/wiring_digital.c @@ -27,28 +27,9 @@ #include "wiring_private.h" #include "pins_arduino.h" -void pinMode_lookup(uint8_t pin, uint8_t mode) +void pinMode_lookup(uint8_t pin, uint8_t val) { - uint8_t bit = digitalPinToBitMask(pin); - uint8_t port = digitalPinToPort(pin); - volatile uint8_t *reg; - - if (port == NOT_A_PIN) return; - - // JWS: can I let the optimizer do this? - reg = portModeRegister(port); - - if (mode == INPUT) { - uint8_t oldSREG = SREG; - cli(); - *reg &= ~bit; - SREG = oldSREG; - } else { - uint8_t oldSREG = SREG; - cli(); - *reg |= bit; - SREG = oldSREG; - } + pinMode_implementation(pin, val); } // Forcing this inline keeps the callers from having to push their own stuff @@ -121,61 +102,12 @@ static void turnOffPWM(uint8_t timer) } } -void __digitalWriteOR_locked(volatile uint8_t*out, uint8_t bit) -{ - uint8_t oldSREG = SREG; - cli(); - *out |= bit; - SREG=oldSREG; -} - -void __digitalWriteAND_locked(volatile uint8_t*out, uint8_t bit) -{ - uint8_t oldSREG = SREG; - cli(); - *out &= bit; // NOTE - no inversion here, invert before calling!!! - SREG=oldSREG; -} - void digitalWrite_lookup(uint8_t pin, uint8_t val) { - uint8_t timer = digitalPinToTimer(pin); - uint8_t bit = digitalPinToBitMask(pin); - uint8_t port = digitalPinToPort(pin); - volatile uint8_t *out; - - if (port == NOT_A_PIN) return; - - // If the pin that support PWM output, we need to turn it off - // before doing a digital write. - if (timer != NOT_ON_TIMER) turnOffPWM(timer); - - out = portOutputRegister(port); - - uint8_t oldSREG = SREG; - cli(); - - if (val == LOW) { - *out &= ~bit; - } else { - *out |= bit; - } - - SREG = oldSREG; + digitalWrite_implementation(pin, val); } int digitalRead_lookup(uint8_t pin) { - uint8_t timer = digitalPinToTimer(pin); - uint8_t bit = digitalPinToBitMask(pin); - uint8_t port = digitalPinToPort(pin); - - if (port == NOT_A_PIN) return LOW; - - // If the pin that support PWM output, we need to turn it off - // before getting a digital reading. - if (timer != NOT_ON_TIMER) turnOffPWM(timer); - - if (*portInputRegister(port) & bit) return HIGH; - return LOW; + digitalRead_implementation(pin); } |